Within The Valve Body; Actuator Mounting; Determining Mounting Position; Nps 3 Through 12 Without Attenuator - Fisher Vee-Ball V150 Instruction Manual

Vee-Ball Valves
June 2017
Note
There is an indicator hole drilled in all Micro‐Notch balls. The orientation of this hole in the ceramic Vee‐Ball is to the right of the
screw in the ball, and must be located closest to the follower end of the ball/shaft assembly. See figures 19 and 22.
WARNING
Avoid personal injury and property damage from ignition of process fluid caused by sparks from ceramic trim.
Do not use ceramic trim where the process fluid is unstable or if it is an explosive mixture (such as ether and air).

Within the valve body:

8. The threaded hole in the shaft, the screw and screw clearance hole in the ball must be free of oil and grease before
applying an activator.
9. Apply Loctiter Dependr Activator 7387 to threaded hole, screw and ball clearance hole. Assemble the ball onto the
shaft while aligning threaded shaft hole within the ball clearance hole.
10. The flat on the shaft must be oriented so that the head of the cap screw seats on the flat.
11. Apply 5 drops of Loctite Depend 330 into the hole in the ball.
12. Thread the screw into the shaft tightening it to 9.2 NSm (81 inSlbs) torque. Remove excess adhesive, Allow four
hours to cure fully before continuing with assembly.
For all constructions: Refer to Replacing the Ball Seal, Packing Maintenance, and other procedures as necessary to
complete the assembly of the valve.

Actuator Mounting

Use the appropriate actuator instruction manual, this section of this manual, and figure 23 of this manual when
mounting the actuator or changing actuator styles and positions.
1. To help ensure correct centering of the Vee‐Ball (key 2) on the seal (key 11), be sure the ball is closed when
mounting the actuator (for applications other than Spring Return Fail‐Open).
2. Clean the valve shaft and actuator lever splines to be sure the actuator lever will slide on easily. Only drive the lever
in if absolutely necessary.
3. Carefully wedge the ball solidly against the actuator‐side bearing, using a screwdriver or similar tool inserted
between the lower ear of the ball and the valve body. This will center the ball. See figure 6.
4. Keep the wedge in place while installing the lever, if necessary. Remove the wedge after you have clamped the
actuator lever on the valve shaft and have connected the lever to the actuator piston rod or diaphragm rod.

Determining Mounting Position

The actuator can be either right or left‐hand mounted, with the actuator on the right or left side when viewed from
upstream (see figure 23).
The Series B Vee‐Ball, NPS 4 through 12 with attenuator, and the NPS 1 micro‐notch Vee‐Ball have one V‐notch. For
right‐hand mounting (standard), the ball will be in the top of the valve body when the valve is open and the shaft is
horizontal. In this position the ball rotates CCW to Close. For left‐hand mounting (standard), the ball will be in the
bottom of the valve body when the valve is open and the shaft is horizontal. In this position the ball rotates CCW to
Close. An optional ball for left‐hand mounting, which rotates into the top of the valve body when the shaft is
horizontal, is also available. In this position the ball rotates CW to Close.
32
Instruction Manual
D101554X012